Belt-guide.



J. T. SMITH.

BELT GUIDE.

APPLICATION TILED 00131, 1910.

Patented Nov. 18, 1913.

COLUMBIA FLANOGRAI'II couwAsnmm'oN. n. c.

rare Parana QFFJIQEO JOHN T. SMITH, OF OBERLIN, KANSAS, ASSIGNOR OF ONE-HALF TO JOHN A. QUINN, 0F OBERLIN, KANSAS.

BELT-GUIDE.

To all whom it may concern Be it known that I, JonN T. SMITH, a citizen of the United States, residing at Oberlin, in the county of Decatur and State of Kansas, have invented certain new and useful Improvements in Belt-Guides, of which the following is a specification, referencebeing had therein to the accompanying drawing.

The belt-guide provided by the invention is particularly adapted for use in connection with the drive-pulleys of traction or other engines employed to run threshing machines, eorn-shellers, and other machinery, in. order to maintain the belt on the pulley while the engine and a machine are being lined up and to prevent the beltwhile in operation from being. run off the pulley under the influence of the wind orsome other cause.

Itis an object of the invention to provide a belt-guide of this nature which may be easily swung out of operative position when it is desired to put on or take off a belt and which may be just as easily returned to operative position.

When read in connection with the description herein, the details of construction and arrangement of parts contemplated by the invention will be apparent from the accompanying drawings, forming part hereof, wherein an embodiment of the invention as applied to a traction-engine is disclosed, for purposes of illustration.

Nhile the form of the invention shown in the drawings is preferred, it is to be understood that it is not the intention to be necessarily limited to the precise delineation herein in interpretation of the claim hereinafter, as it is obvious that various changes within the scope of the invention can be made in the structure shown and described.

Like reference-characters refer to corresponding parts in the several views 'of the drawings, of which Figure 1 is a side view with the guide in operative position; Fig. 2 is an end View; Fig. 3 is a top view; and Fig. 4L is an enlarged sectional view of the lower guide.

Having more particular reference to the drawings, 6 designates the boiler of a trac tion-engine, and 7 the drivepulley thereof located toward the front of the engine. A bracket 8 is supported by the boiler in the rear of the pulley, and a shaft 9 is ournaled Specification of Letters Patent.

Application filed October 31, 1910.

Patented Nov. 18, 1913.

Serial No. 589,946.

in this bracket and extended laterally therefrom so that a portion is in line with the pulley. Two arms 10 are extended radially from shaft 5) and then upwardly near their outer ends to form portions 11, and the ends of those portions are joined by a connertmg piece 12. A roller 13 is journaled on each arm 10 between abutments 1 1 near shaft t), and a roller 1.5 is journaled on each upwardly-extending portion 111. The rollers 13 and 15 are so positioned on the arms that when these arms are swung downwardly by rocking of shaft 9 they will be in proper position to be engaged by the edges of a belt on the pulley in the upper run and in the rear arc of its contact with the pulley when the belt has a tendency to run oil.

Theshaft 9 has at one end an arm 16 connected by a link or rod 17 with a hand-lever l8 pivoted on a member 15) supported by the engine-boiler. The member 19 is located at the rear of the engine within easy reach of the engineer, and it includes a rack :20 with which a spring-controlled pawl 21 on the lever cooperates to hold the latter in the various positions of adjustn'ient. Vhen it is desired to raise the rollers 13 and 15 out of the way on putting on or taking a belt off the pulley, the hand-lever is shoved forwardly and the shaft 9, through the instrumentality of the rod 17 and arm 16, rocked to raise the arms '10 which are then held in raised position by engagement of the pawl with the rack. The rollers are lowered into operative position by reversal of this movement. In order that the rollers may be stopped at exactly the right operative position with respect to the pulley. the member 19 has a stop 22 thereon with which the lever contacts when the rollers have reached this position, the further descent of the rollers and engagement of connecting piece 12 with the belt being thereby obviated.

In order to guide the lower run of the belt, an upright roller 93, a horizontal roller 94, and a normally upright roller are supported by a bracket 26 fixed to the side of the engine'boiler. The roller 23 is journaled between the laterally-extending portions .27 and 28 of the bracket. A shaft 29 is continued from the lower portion 28 of the bracket upon which roller 24 is journaled. A rocking member 30 is positioned on shaft 29 outside of roller Q-l: and this member carries a shaft 31 uponwhich the roller 25 is j ournaled. Assuming the roller 25 is in its normal upright position to be engaged by the edge of the belt, an arm 32 depends from the member and below shaft 29 and this arm has a rearward extension 33. A rod 34 connects extension 33 with an arm 35 fixed to the shaft 9. Arm 35 is so disposed on shaft 9 that when that shaft is rocked to swing the roller-carrying arms 10 upwardly to inoperative position, the member 30 will be rocked to swing roller 25 rearwardly and downwardly out of the way of a belt being placed 011 or taken ofi the pulley. The rearward extension 33 serves to permit the rod to give member 30 the amount of turn required to sufiiciently lower the roller 25. When shaft 9 is rocked to swing the rollercarrying arms down to operative position, the roller 25 will be swung upwardly on its carrying member 30 to operative position. The arm 35 has a plurality of apertures 36 in any one of which the end of rod 34 may be engaged to give the member 30 greater or less rocking movement as desired.

Should it not be desired to depend entirely upon the stop 22 cooperating with the hand-lever 18 to limit the movement of the rollers to operative position, a chain or the like 37 of the proper length may be connect ed to the piece 12 and to some relatively high fixed part of the engine, as for instance the wningsupport 38.

Having thus described my invention, what I claim as new, and desire to secure by Let- F on, a normally upright roller journaled on said member, and'a connection between said rock-shaft and said swingable member whereby said normally upright roller will beswung from upright position on movement of said arms from positions contiguous to the belt.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN T. SMITH.

Witnesses:

JOHN B. OGRADY, S. O. STOWELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. 0. 

